EP 2069806 A2 20090617 - SIGNAL ANALYZERS AND FREQUENCY DOMAIN DATA PRODUCTION METHODS
Title (en)
SIGNAL ANALYZERS AND FREQUENCY DOMAIN DATA PRODUCTION METHODS
Title (de)
SIGNALANALYSEGERÄT UND VERFAHREN ZUR HERSTELLUNG VON FREQUENZDOMÄNENDATEN
Title (fr)
ANALYSEURS DE SIGNAL ET PROCÉDÉS DE PRODUCTION DE DONNÉES DE DOMAINE DE FRÉQUENCE
Publication
Application
Priority
- IB 2007004337 W 20070919
- JP 2006253262 A 20060919
Abstract (en)
[origin: WO2008072091A2] Sets of time domain data of respective frequency bands from Fd-I to Fd-n of a periodic input signal Fs are acquired. Sets of the time domain data of the common frequency band are extracted from the sets of the time domain data of the frequency bands Fd-1and Fd-2 in the acquired frequency bands. Correlativity between the sets of the time domain data of the common frequency band is determined while shifting time relationship between the sets each other to identify the sets of time domain data having correspondence relationship. The sets of the time domain data having the correspondence relationship in the time domain data of the adjacent frequency band Fd-1 and Fd-2 are converted to the sets of the frequency domain data respectively, and the sets of the frequency domain data are combined to produce one set of combined frequency domain data.
IPC 8 full level
G01R 23/16 (2006.01)
CPC (source: EP US)
G01R 23/167 (2013.01 - EP US)
Citation (search report)
See references of WO 2008072091A2
Designated contracting state (EPC)
DE FR GB IT
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2008072091 A2 20080619; WO 2008072091 A3 20081231; CN 101558318 A 20091014; CN 101558318 B 20120418; EP 2069806 A2 20090617; JP 2008076112 A 20080403; JP 4675300 B2 20110420; US 2008144856 A1 20080619; US 7945407 B2 20110517
DOCDB simple family (application)
IB 2007004337 W 20070919; CN 200780042870 A 20070919; EP 07866618 A 20070919; JP 2006253262 A 20060919; US 85808807 A 20070919